JP6026011B2 - Display control apparatus, information display method, and information display system - Google Patents

Description

  The present invention relates to a display control apparatus, an information display method, and an information display system for controlling display of a head-up display (hereinafter abbreviated as HUD) and an instrument panel (hereinafter abbreviated as instrument panel).

Generally, the driver's effective field of view tends to narrow during high-speed driving or hands-free calling, and the driver may miss display information that can be acquired during low-speed driving during high-speed driving. On the other hand, the HUD is a display that allows a driver to visually recognize information without greatly moving his / her line of sight from the front scenery, and can be expected to reduce the above-described information oversight and side-by-side driving.
However, when various types of information are always displayed in front of the driver using the HUD, the displayed information blocks the driver's field of view, which is problematic from the viewpoint of safe driving. For this reason, it is necessary to change appropriately the display mode of the information presented to the driver.

  For example, Patent Document 1 discloses a vehicle information display device that controls display of a display device installed at a different position in a vehicle. This device improves information visibility and convenience by changing the information display mode according to the type of information and the operation of the driver.

  Patent Document 2 discloses a vehicle-mounted display device that changes the screen direction of a display device according to the traveling state of a vehicle. For example, when displaying moving image information such as a DVD during driving, the display screen is directed to the passenger seat side so that it cannot be seen from the driver, and driving support information necessary for supporting driving of the vehicle is displayed. Has a display screen facing the driver's seat so that it can be seen by the driver. It has also been proposed to display driving support information on an alternative display such as a HUD.

Patent Document 3 discloses a display device that can store and pull out a display monitor in a storage section provided on a dashboard of a vehicle. This device automatically stores the display monitor when the vehicle starts to travel with the display monitor pulled out of the storage unit.
In addition, when driving is started with video information displayed, the display monitor is forcibly stowed so that the attention required for driving is dispersed if a mobile phone or car navigation device is used during driving. Therefore, it avoids the so-called driver's distraction that there is a concern that the safety is lowered.

JP 2007-76382 A JP 2000-62542 A International Publication No. 2012/046294

  In Patent Document 1, it is assumed that the driver is looking at a display device fixed in the vehicle. For this reason, when a driver | operator's effective visual field exists in the outer side of a display, the oversight of a display content cannot be reduced. Patent Documents 2 and 3 both aim to reduce driver distraction, and store the display screen and display monitor so that the driver does not see the display contents during driving. ing. That is, since the information itself that can be visually recognized by the driver is limited, it is not possible to reduce information oversight due to a change in the driver's effective visual field.

  The present invention has been made to solve the above-described problems, and can provide a display control device, an information display method, and an information display system that can reduce oversight of display information even if the driver's effective visual field changes. The purpose is to obtain.

The display control device according to the present invention controls the display of an instrument panel display mounted on a vehicle and provided with a display screen for displaying instrument panel information that can be moved up and down, and a head-up display provided on the vehicle front side of the instrument panel display. A display control device that determines a driving situation based on information from a vehicle sensor, and an effective visual field determination part that determines an effective visual field of the driver based on the determined driving situation. An instrument panel drive control unit that controls the raising and lowering of the display screen of the instrument panel display based on a comparison result between the driver's effective field of view and the effective field of view in a predetermined normal driving situation, and heads up based on the determined driver's effective field of view An instrument panel drive controller comprising a display controller for controlling display on the display and the instrument panel display If the effective field of view of the determined driver is valid field in normal operating conditions, high Satoshi, effective visual field of the determined driver is greater than the effective field of view in normal operating conditions the height of the instrument panel display in normal operating conditions In the case where the height of the instrument panel display is raised from the height in the normal driving situation, and if the effective visual field of the determined driver is smaller than the effective visual field in the normal driving situation, the height of the instrument panel display is lowered from the height in the normal driving situation. , the display control unit, with the descent of the instrument panel display from raised position than the height in normal operating conditions, wherein the display by moving the information instrument panel display is displayed on the head-up display.

  According to the present invention, there is an effect that it is possible to reduce oversight of display information even if the driver's effective visual field changes.

It is a block diagram which shows the structure of the information display system which concerns on Embodiment 1 of this invention. It is a figure which shows the example of the sensor information utilized for a driving | running condition determination. It is a figure which shows the driving | running | working condition determination table in Embodiment 1. FIG. 6 is a diagram illustrating an effective visual field determination table (example 1) in the first embodiment. FIG. 3 is a flowchart showing an operation of the display control apparatus according to the first embodiment. 6 is a diagram illustrating a display mode (example 1) of information according to a change in effective visual field in the first embodiment. FIG. It is a figure which shows the outline | summary of adjustment of the display size of information. 6 is a diagram illustrating an effective visual field determination table (example 2) in the first embodiment. FIG. FIG. 10 is a diagram illustrating a display mode (example 2) of information according to a change in effective visual field in the first embodiment. It is a block diagram which shows the structure of the information display system which concerns on Embodiment 2 of this invention. 10 is a flowchart illustrating an operation of the display control apparatus according to the second embodiment. FIG. 10 is a diagram showing a display mode of information according to a change in effective visual field in the second embodiment. It is a block diagram which shows the structure of the information display system which concerns on Embodiment 3 of this invention. FIG. 10 is a diagram showing an effective visual field determination table in the third embodiment. FIG. 10 is a diagram illustrating a display mode of information according to a change in effective visual field in the third embodiment.

Hereinafter, in order to describe the present invention in more detail, modes for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
1 is a block diagram showing a configuration of an information display system according to Embodiment 1 of the present invention. The information display system shown in FIG. 1 is a system that displays information on a head-up display (hereinafter abbreviated as HUD) 1 and an instrument panel display 2 mounted on a vehicle.
The HUD 1 is a display that projects and displays information on a windshield in front of the driver's seat or a projection board that is provided between the steering wheel and the windshield, and is a projection board that is provided on the front side of the vehicle from the instrument panel display described later. is there. For example, the display image of the display device embedded in the instrument panel is reflected on a windshield or the like in front of the driver's seat so that the driver can visually recognize it. Thereby, in HUD1, information is superimposed and displayed on a driver's front visual field.

The instrument panel display 2 is a display that displays information to be displayed on the instrument panel, with a display screen disposed on the dashboard in front of the driver's seat, and is provided so that the display screen can be raised and lowered by the driving force of the actuator 3. For example, the driver sitting in the driver's seat can move the display screen up to a position overlapping the field of view facing the front windshield, and can also move the display screen down to the storage position inside the dashboard. .
The actuator 3 is an actuator that moves the display screen of the instrument panel display 2 up and down in accordance with a drive signal input from the display control device 5. The actuator 3 also includes a motor serving as a drive source and a transmission mechanism that converts the rotational force of the motor into a lifting operation force and transmits it.

Vehicle sensors 4-1, 4-2,..., 4-n are a sensor group that detects information used for determining the driving situation. For example, as shown in FIG. 2, the vehicle speed, the road type of the road on which the vehicle is traveling, the driver's concentration of driving, etc. are detected as sensor information.
When acquiring the vehicle speed, a vehicle speed sensor for detecting the vehicle speed of the own vehicle, a GPS (Global Positioning System) receiver mounted on the vehicle, a smartphone having a GPS positioning function brought into the vehicle, and the like are acquired. Can be mentioned. A functional configuration for acquiring information related to vehicle speed from these devices is a vehicle sensor.

  When acquiring the road type, for example, the road type is acquired from a map information storage device possessed by an external device such as a navigation system mounted on the vehicle. Alternatively, the road type is acquired from the map information stored in the map data server on the communication network. Alternatively, the road type is acquired from the road information distributed by the roadside device of the road on which the vehicle travels. Further, a result of recognizing a road type situation obtained by analyzing a road sign or distance data detected by a distance sensor by analyzing a camera image taken by a vehicle-mounted camera may be acquired. In this case, the functional configuration for acquiring the road type from the external device or the map data server is a vehicle sensor.

Moreover, when acquiring the information regarding the concentration of driving | operation, a vehicle sensor is a function structure which acquires information from an ecology information sensor, a vehicle control apparatus, a vehicle camera, etc. FIG. For example, the driver's line-of-sight behavior identified from the driver's electrocardiogram, brain wave, or video captured by the in-vehicle camera measured by the ecological information sensor is acquired as information indicating the degree of driving concentration. Also, if it is determined from the video taken by the in-vehicle camera that the driver is performing a specific operation (such as a hands-free operation that distracts from driving), it indicates that the driver is not concentrating on driving Obtained as information.
In addition, for example, information (steering angle, accelerator work, etc.) related to the driving operation may be acquired from the vehicle control device. When the steering operation is disturbed or the accelerator work is abnormal, it can be determined that the driver is not concentrating on driving.

The display control device 5 is a display control device that controls the display of the HUD 1 and the instrument panel display 2, and is configured to include an operation state determination unit 50, an effective visual field determination unit 51, an instrument panel drive control unit 52, and a display control unit 53. .
The driving state determination unit 50 determines the driving state of the vehicle based on the sensor information acquired by the vehicle sensors 4-1, 4-2,. For example, the driving condition determination unit 50 refers to the determination table shown in FIG. 3 and determines the driving condition that matches the sensor information. For example, in FIG. 3, when the vehicle speed of the own vehicle is included in the range of 60 to 80 km / h and the road type of the travel path is a general road, the driving situation is traveling on the general road at a dangerous speed. It is determined that there is.

  The effective visual field determination unit 51 determines the effective visual field of the driver based on the driving situation determined by the driving situation determination unit 50. For example, the effective visual field determination unit 51 refers to the determination table shown in FIG. 4 to determine the degree of the effective visual field that matches the driving situation of the host vehicle, and further determines the instrument panel installation position in the effective visual field. Here, the effective visual field range of the driver is measured or the effective visual field range of the general driver is obtained by experiment, and the effective visual field in the normal driving condition set in advance is used as a reference. The first embodiment is based on the time when traveling on a general road at 40 km / h. The effective field of view is “small” when the effective field of view is narrower than the effective field of view in the normal driving situation as a reference. In addition, when the effective visual field is wider than the effective visual field in the normal driving situation, the effective visual field is “large”. For example, in FIGS. 3 and 4, if the vehicle is traveling on a general road at a speed of 40 km / h or higher, the effective field of view is determined to be “small”, and the general road is less than 40 km / h. The effective field of view is determined to be “large” if the vehicle is traveling at a speed of. Here, the reference is an upper concept including a reference range described later.

The instrument panel drive control unit 52 has a function of controlling the actuator 3 based on the determination result of the effective visual field determination unit 51 to control the elevation of the display screen of the instrument panel display 2. For example, the instrument panel drive control unit 52 sets the display screen of the instrument panel display 2 at the instrument panel installation position corresponding to the effective visual field determined by the effective visual field determination unit 51 based on the determination table of FIG.
When the vehicle is traveling on a general road at a dangerous speed, the effective field of view is determined to be “small”. Therefore, in order to secure the driver's front field of view, the display screen of the instrument panel display 2 has the effective field of view “ Compared with the case of “large”, it is moved in the downward direction so that the height of the uppermost part of the instrument panel display 2 from the dashboard is 10 cm.
If the vehicle is parked at the parking lot and the parking brake is applied, that is, if it is determined that the vehicle is parked, the display screen of the instrument panel display 2 is moved upward regardless of the effective field of view. Let the height of the uppermost part of the instrument panel display 2 be a position where the maximum height is 30 cm from the dashboard.

The display control unit 53 is a control unit that controls display on the HUD 1 and the instrument panel display 2. For example, when the effective visual field determination unit 51 determines that the driver's effective visual field is “small”, the information displayed on the instrument panel display 2 is moved and displayed on the HUD 1. In this case, the driver can view necessary information from the HUD 1 while looking forward.
Further, when the effective visual field of the driver is determined to be “large”, more information than the HUD 1 is displayed as information to be displayed on the instrument panel display 2 in order to make maximum use of the instrument panel display 2.

  Note that the driving situation determination unit 50, the effective visual field determination unit 51, the instrument panel drive control unit 52, and the display control unit 53 are, for example, programs stored in a storage device such as a ROM in which processing unique to this embodiment is described. Can be realized as a specific means in which hardware and software cooperate with each other when the microcomputer executes the peripheral device using a peripheral device such as a RAM.

Next, the operation will be described.
FIG. 5 is a flowchart showing the operation of the display control apparatus according to the first embodiment.
First, the driving status determination unit 50 determines the driving status of the vehicle by the driver based on the sensor information acquired by the vehicle sensors 4-1, 4-2, ..., 4-n (step ST1).
For example, with reference to the determination table shown in FIG. 3, the driving situation that matches the sensor information of the vehicle sensor is determined. In addition, although the driving situation corresponding to the vehicle speed of the own vehicle and the road type of the traveling road is registered in the determination table of FIG. 3, the driving situation corresponding to the degree of concentration of driving described above may be registered. That is, in the determination of the driving situation, a determination table in which a driving situation corresponding to at least one of the vehicle speed of the own vehicle, the road type of the traveling road, and the concentration of driving may be used. In the first embodiment, an example will be described in which a determination table in which a driving situation corresponding to at least one of the vehicle speed of the own vehicle, the road type of the traveling path, and the concentration of driving is registered is used. In short, the driving situation may be anything as long as the effective visual field of the driver can be determined.

Next, the effective visual field determination unit 51 determines, for example, the degree of the effective visual field that matches the driving situation determined by the driving situation determination unit 50 with reference to the determination table of FIG. 4 (step ST2).
In the above-described case, the driving situation determination unit 50 uses the determination table in which the driving situation corresponding to at least one of the vehicle speed of the host vehicle, the road type of the traveling road, and the concentration of driving is registered. Determine. Therefore, the effective visual field determination unit 51 operates based on at least one of the vehicle speed of the host vehicle, the road type of the traveling path, and the concentration of driving based on the driving state of the host vehicle determined by the driving state determination unit 50. The effective visual field of the person is judged.
In the first embodiment, the effective visual field of the driver can be accurately determined based on at least one of the vehicle speed of the own vehicle, the road type of the travel path, and the concentration of driving. When referring to the determination table of FIG. 4, the effective visual field determination unit 51 also determines the effective visual field that matches the current driving situation and the instrument panel installation position corresponding thereto.

The display control unit 53 determines information to be displayed on the HUD 1 and the instrument panel display 2 according to the driver's effective visual field determined by the effective visual field determination unit 51 (step ST3). For example, it is determined in consideration of information visibility and design when information is moved to the HUD 1. Alternatively, information that moves to the HUD 1 may be determined when a part of the display information is lost due to the descent of the instrument panel display 2.
FIG. 6 is a diagram showing a display mode of information according to a change in the effective visual field in the first embodiment. For example, when the effective visual field determination unit 51 determines that the driver's effective visual field is “large”, as shown in FIG. 6A, all information necessary for driving or almost all information is displayed on the instrument panel display 2. On the display screen.
In FIG. 6A, navigation information 2 a for guiding a left turn ahead 200 m and a speedometer image 2 b are displayed on the display screen of the instrument panel display 2 as information necessary for driving. At this time, the display screen of the instrument panel display 2 protrudes from the upper part of the dashboard 7 so as not to be blocked by the handle 8, and is in a position overlapping the visual field where the driver faces the front windshield 6.

  For example, when the vehicle power is turned off, the display control device 5 moves the display screen of the instrument panel display 2 in the downward direction and stores it regardless of the driver's effective visual field (the height of 0 cm in FIG. 4). If). On the other hand, when the vehicle power is turned on thereafter, the display control device 5 installs the display screen of the instrument panel display 2 at a height corresponding to parking (for example, the maximum height of 30 cm in FIG. 4). When the parked state is canceled and the vehicle is traveling on a general road at less than 40 km / h, it is determined that the effective field of view is “large”. Therefore, as shown in FIG. The instrument panel display 2 is lowered from a position (maximum height 30 cm) to a height (for example, height 20 cm) corresponding to the effective field of view “large”. Note that navigation information 2a and a speedometer image 2b are displayed on the display screen of the instrument panel display 2 installed at a height corresponding to the effective field of view “large”.

Although FIG. 6A shows a case where information is not displayed on the HUD 1 when information is displayed on the instrument panel display 2, information may be displayed on both the HUD 1 and the instrument panel display 2. However, since the HUD 1 displays information on the windshield 6 in front of the driver, if the information is displayed excessively, it hinders driving.
Therefore, when displaying information on both the HUD 1 and the instrument panel display 2, the display control unit 53 causes the HUD 1 to display less information than the information displayed on the instrument panel display 2.

Next, when the driving state of the vehicle changes and the effective visual field of the driver is determined to be “small”, the effective visual field determination unit 51 determines the instrument panel installation position corresponding to the effective visual field “small” from the determination table of FIG. (For example, height 10 cm) is read out and set in the instrument panel drive control unit 52.
The instrument panel drive controller 52 controls the actuator 3 to move down the display screen of the instrument panel display 2 so that the instrument panel installation position set by the effective visual field determination unit 51 is reached (step ST4). Thereby, the display screen of the instrument panel display 2 is at a height position as shown in FIG. 6B, and the field of view of the driver facing the front windshield 6 is widened.

On the other hand, when the effective visual field determination unit 51 determines that the driver's effective visual field is “small” and the instrument panel drive control unit 52 moves down the display screen of the instrument panel display 2, the display control unit 53 determines the content determined in step ST3. Accordingly, the information displayed on the instrument panel display 2 is moved to the HUD 1 and displayed (step ST5).
In the example shown in FIG. 6B, when the display screen of the instrument panel display 2 descends and the field of view facing the windshield 6 in front of the driver widens, the information displayed on the display screen of the instrument panel display 2 is displayed on the HUD 1. It is moved and displayed as navigation information 1a and a speedometer image 1b for guiding a left turn 200m ahead. By displaying information necessary for driving on the HUD 1 with the driver's effective field of view narrowed in this way, the driver can visually recognize the information necessary for driving without moving the line of sight greatly. Therefore, it is possible to reliably reduce oversight of display information due to a change in the effective visual field of the driver.

The HUD 1 projects and displays the display image from the display device on the windshield 6 as shown in FIG. At this time, the windshield 6 functions as a half mirror and reflects light from the display device to the driver side. Thus, the driver can visually recognize the display image 1A projected on the windshield 6 as a virtual image at the position B.
On the other hand, the display screen of the instrument panel display 2 is closer to the driver than the HUD 1 as shown in FIG. 7A, and the display image 2A is visually recognized at a position A of the display screen.
For this reason, even if the same information is displayed on the HUD 1 and the instrument panel display 2 without adjusting the display size of the information, the display size looks different from the driver.
Therefore, when the information displayed on the instrument panel display 2 is moved and displayed on the HUD 1 as described above, the display size of the information changes and the driver feels uncomfortable.

Therefore, in this embodiment, when the display control unit 53 adjusts the display size of information on the HUD 1 and the instrument panel display 2 and displays the same information, the driver's apparent appearance on the HUD 1 and the instrument panel display 2. Display the same size.
For example, table data in which the display size viewed from the driver is registered in association with the optical path length in the optical system of the HUD 1 is prepared, and the display control unit 53 performs the above operation based on the display size of the information displayed on the instrument panel display 2. With reference to the table data, the size of the display image 1A is adjusted so that the HUD1 looks the same size. As a result, as shown in FIG. 7B, even when navigation information 2a for guiding a left turn 200m ahead displayed on the display screen of the instrument panel display 2 is moved to HUD1, it is displayed on HUD1. The navigation information 1a has the same display size as the navigation information 2a.
In this way, it is possible to prevent the driver from feeling uncomfortable due to a change in the display size of information.

In the above description, as shown in FIG. 4, the case where the driver's effective visual field range is determined to be large or small is shown, but the effective visual field range may be classified into large, medium, and small. For example, the effective visual field determination unit 51 determines the driver's effective visual field with reference to a determination table as shown in FIG.
In the determination table of FIG. 8, the effective visual field range of the driver is measured or the effective visual field range of a general driver is obtained by experiment, and the effective visual field range in the normal driving condition determined in advance is the reference range (effective visual field “medium” "Range"). Here, the reference range is the time when the vehicle is traveling at 20 km / h or more and less than 60 km / h. When the effective visual field is narrower than the reference range, the effective visual field is “small”. Further, when the effective visual field is wider than the reference range, the effective visual field is “large”.
For example, in FIG. 8, if the vehicle is traveling on a general road at a medium speed, it is determined that the vehicle is in a normal driving situation, and the effective field of view is “medium”. At this time, the instrument panel installation position is set to a position (for example, a height of 15 cm) lower than the effective visual field “large” (for example, a height of 20 cm).

  The instrument panel drive control unit 52 sets the display screen of the instrument panel display 2 at a predetermined instrument panel installation position corresponding to the effective field of view determined by the effective field of view determination unit 51 based on the determination table of FIG. For example, FIG. 9A shows navigation information 2a, speedometer image 2b, and mail information on the display screen of the instrument panel display 2 at the instrument panel installation position (for example, height 20 cm) corresponding to the driver's effective field of view “large”. The case where 2c is displayed is shown.

  When the driving situation changes from this state and the driver's effective field of view becomes “medium”, as shown in FIG. 9B, the display screen of the instrument panel display 2 is positioned lower than the case where the effective field of view is “large” (for example, And a part of the information displayed on the instrument panel display 2 is moved to the HUD 1 and displayed. In the case of FIG. 9B, the navigation information 2a is moved from the instrument panel display 2 to the HUD 1 and displayed as the navigation information 1a on the HUD 1.

  Further, when the driving situation changes and the driver's effective field of view becomes “small”, as shown in FIG. The information displayed on the instrument panel display 2 is further moved to the HUD 1 and displayed. In the case of FIG. 9C, the speedometer image 2b is moved from the instrument panel display 2 to the HUD1, and is displayed as the speedometer image 1b on the HUD1. The mail information 2c is continuously displayed on the instrument panel display 2. That is, in step ST3 in FIG. 5 described above, information that moves to the HUD 1 is determined in consideration of information visibility and design. Alternatively, information to be moved to the HUD 1 is determined when a part of display information is lost due to the descent of the instrument panel display 2.

  Note that when the vehicle is parked, it is not necessary to consider the driver's effective field of view unlike when traveling, so the instrument panel drive control unit 52 displays the display screen of the instrument panel display 2 from the state of FIG. Further, the display control unit 53 may move all the information to be displayed on the instrument panel display 2 on the instrument panel display 2 regardless of the driver's effective visual field. . Thus, the driver can visually recognize only the display screen of the instrument panel display 2 to grasp various information, and can improve the convenience of the information display system.

  As described above, according to the first embodiment, the instrument panel drive control unit 52 determines that the effective visual field determination unit 51 determines that the driver's effective visual field is narrower than the effective visual field in the normal driving situation described above. Moves the display screen of the instrument panel display 2 in the downward direction. When the display screen of the instrument panel display 2 is lowered, the display control unit 53 moves the information displayed on the instrument panel display 2 to the HUD 1 for display. With this configuration, even if the driver's effective visual field is narrowed, information can be visually recognized without greatly moving the line of sight, and oversight of display information due to a change in the driver's effective visual field can be reduced.

  Moreover, according to this Embodiment 1, the display control part 53 can also display less information than the information which the instrument panel display 2 displays on HUD1. By doing in this way, it can control that information is displayed on HUD1 excessively and becomes a hindrance of driving.

  Furthermore, according to this Embodiment 1, when the display control part 53 displays the same information, it displays so that the magnitude | size from a driver | operator may become the same with HUD1 and the instrument panel display 2. FIG. By doing so, it is possible to prevent the display size of the information from changing when the information is moved from the instrument panel display 2 to the HUD 1, and the driver does not have a sense of incongruity due to the change in the display size.

  Further, according to the first embodiment, when the vehicle is parked, the instrument panel drive control unit 52 moves the display screen of the instrument panel display 2 in the upward direction, and the display control unit 53 controls the driver's effective visual field. Regardless, all the information to be displayed on the instrument panel display 2 is displayed on the instrument panel display 2. By doing in this way, a driver | operator can visually recognize only the display screen of the instrument panel display 2 and can grasp | ascertain various information, and can improve the convenience of an information display system.

  Furthermore, according to this Embodiment 1, the effective visual field determination part 51 determines a driver | operator's effective visual field according to the driving speed of a vehicle. In this way, it is possible to accurately determine the driver's effective visual field according to the actual driving situation specified based on the traveling speed of the vehicle.

  Furthermore, according to this Embodiment 1, the effective visual field determination part 51 determines a driver | operator's effective visual field according to the road classification of the road where a vehicle drive | works. In this way, it is possible to accurately determine the driver's effective field of view according to the actual driving situation specified based on the road type of the traveling path of the vehicle.

  Furthermore, according to this Embodiment 1, the effective visual field determination part 51 determines an effective visual field according to the driver | operator's concentration of driving. In this way, it is possible to accurately determine the driver's effective visual field in accordance with the actual driving situation specified based on the degree of driving concentration.

Embodiment 2. FIG.
FIG. 10 is a block diagram showing a configuration of an information display system according to Embodiment 2 of the present invention. The information display system shown in FIG. 10 is a system that displays information on the HUD 1 and the instrument panel display 2 mounted on the vehicle, as in the first embodiment.
However, it differs from the display control device 5 of the first embodiment in that the display control device 5A includes a display control unit 53A, and the display control unit 53A includes a priority determination unit 531 in its functional configuration.

The priority determination unit 531 is a determination unit that determines the priority assigned to each information displayed on the HUD 1 or the instrument panel display 2. The priority is a priority displayed on the HUD 1, and the priority is not limited to two levels of “large” and “small”, and a plurality of levels such as “large”, “medium”, and “small” can be set. It may be set. Here, for example, information whose priority is “high” refers to information that is directly related to driving and should not be overlooked. For example, information with a priority of “high” includes route guidance navigation information, speed limit, warning that requires immediacy (obstacle detection, lane departure), and the like. Further, for example, information having a priority of “small” refers to information that is not directly related to driving and has no problem even if overlooked. For example, information with a priority of “small” includes entertainment information such as AV. Further, information with a priority of “medium” is information that does not belong to any of the above-described information, and for example, information that is directly related to driving but has no problem even if it is overlooked. For example, a warning that does not require immediacy (gasoline remaining amount warning).
On the other hand, information that the driver does not want to overlook may be set by the driver himself using a not-shown input device. For example, if it is not desired to overlook the music information being played back, the priority of the information may be set to “high”.

  Note that the driving situation determination unit 50, the effective visual field determination unit 51, the instrument panel drive control unit 52, and the display control unit 53A are, for example, programs stored in a storage device such as a ROM in which processing unique to this embodiment is described. Can be realized as a specific means in which hardware and software cooperate with each other when the microcomputer executes the peripheral device using a peripheral device such as a RAM.

Next, the operation will be described.
FIG. 11 is a flowchart showing the operation of the display control apparatus according to the second embodiment.
In FIG. 11, the processing in step ST1, step ST2, and step ST5 is the same as that in FIG.
In step ST3a, the display control unit 53A displays information to be displayed on each of the HUD 1 and the instrument panel display 2 in accordance with the effective visual field of the driver determined by the effective visual field determination unit 51 and the priority assigned to each information. decide.
For example, the priority determination unit 531 sets a priority for each piece of information. For example, when “Large” or “Small” is set as the priority and the driver's effective field of view is “Small”, information with a priority “Large” is displayed with priority over HUD1 and prioritized. Information on the degree “small” is displayed on the instrument panel display 2 even if the driver's effective field of view is “small”.
A case where priority is set at a plurality of levels such as “large”, “medium”, and “small” will be described. At this time, when the effective field of view of the driver is determined to be “small”, information of priority “large” and “medium” is displayed on the HUD 1 and information of priority “small” is displayed on the instrument panel display 2. indicate.
Similarly, when the driver's effective field of view is determined to be “medium”, information with priority “high” is displayed on the HUD 1 and information with priority “medium” and “small” is displayed on the instrument panel display 2. indicate. When it is determined that the driver's effective visual field is “large”, all information is displayed on the instrument panel display 2.

In the above description, the priority is set in relation to driving. However, the HUD 1 is not generally suitable for displaying fine characters and images and displaying a large amount of information, and may display the driver's view if excessive information is displayed.
Therefore, when information is displayed on the HUD 1 and the instrument panel display 2, in view of such a viewpoint, a priority may be set for each display information and displayed on the HUD 1 based on the priority.

For example, FIG. 12B shows a case where the priority of the navigation information 1a is “high” and the priority of the speedometer image 1b is “low”.
When the driver's effective visual field is “small”, the navigation information 1a is displayed on the HUD 1, and the speedometer image 2b, which may be a fine image, is displayed on the instrument panel display 2.
The display control unit 53A may display at least one of the information not displayed on the HUD 1 on the instrument panel display 2. Also by doing in this way, it is possible to suppress that information is not excessively displayed on the HUD 1 and that the information displayed on the HUD 1 hinders driving.

As described above, according to the second embodiment, the priority determination unit 531 that determines the priority given to each information is provided, and the display control unit 53A uses the priority determined by the priority determination unit 531. Based on this, it is determined whether or not to display each piece of information on the HUD 1.
By configuring in this way, information that is not desired to be overlooked during driving can be displayed with priority over HUD1.

  Further, according to the second embodiment, the display control unit 53A displays at least one of the information not displayed on the HUD 1 on the instrument panel display 2. By doing in this way, information is not displayed excessively on HUD1 and it can control that the information displayed on HUD1 becomes the obstacle of a driving.

Embodiment 3 FIG.
FIG. 13 is a block diagram showing a configuration of an information display system according to Embodiment 3 of the present invention. The information display system shown in FIG. 13 is a system that displays information on the HUD 1, the instrument panel display 2, the left instrument panel display 9A, and the right instrument panel display 9B mounted on the vehicle.

The left instrument panel display 9A is an instrument panel display for a side mirror that displays a captured image of the left rear side of the vehicle. The display screen of the left instrument panel display 9A is arranged on the left side of the display screen of the instrument panel display 2, and can be moved up and down independently of the display screen of the instrument panel display 2. The left actuator 10a moves the display screen of the left instrument panel display 9A up and down according to the drive signal input from the display control device 5B.
The left actuator 10a also includes a motor serving as a drive source and a transmission mechanism that converts the rotational force of the motor into a lifting operation force and transmits it. When the left instrument panel display 9A functions as a side mirror, an image of a camera that captures the rear left side as a vehicle sensor is displayed.

The right instrument panel display 9B is an instrument panel display for a side mirror that displays a captured image on the rear right side of the vehicle. The display screen of the right instrument panel display 9B is arranged on the right side of the display screen of the instrument panel display 2, and can be moved up and down independently of the display screen of the instrument panel display 2. The right actuator 10b moves the display screen of the right instrument panel display 9B up and down according to the drive signal input from the display control device 5B.
The right actuator 10b includes a motor serving as a drive source and a transmission mechanism that converts the rotational force of the motor into a lifting operation force and transmits it. Further, when the right instrument panel display 9B functions as a side mirror, an image of a camera that captures the rear right side as a vehicle sensor is displayed. The left actuator 10a and the right actuator 10b can be used with their operations synchronized.

The display control device 5B is a display control device that controls display on the HUD 1, the instrument panel display 2, the left instrument panel display 9A, and the right instrument panel display 9B.
Further, as its functional configuration, it includes a driving situation determination unit 50, an effective visual field determination unit 51, an instrument panel drive control unit 52A, and a display control unit 53B.
For example, the effective visual field determination unit 51 refers to the determination table shown in FIG. 14 to determine the degree of the effective visual field that matches the driving situation of the host vehicle, and determines the instrument panel installation position in the effective visual field. In FIG. 14, the effective field of view is “small” if the vehicle is traveling on a general road at a dangerous speed, and the effective field of view is “large” if the vehicle is traveling on a general road at a medium speed. Determined.

The instrument panel drive control unit 52A controls the actuator 3, the left actuator 10a, and the right actuator 10b based on the determination result of the effective visual field determination unit 51, and displays the display screens of the instrument panel display 2, the left instrument panel display 9A, and the right instrument panel display 9B. It has a function to control elevation.
For example, when the vehicle is traveling on a general road at a dangerous speed, the effective field of view is “small”. Therefore, in order to secure the driver's front field of view, the display screen of the instrument panel display 2 is moved downward to The height from the board is 10 cm. At this time, the left instrument panel display 9A and the right instrument panel display 9B need to display the left and right rear sides when the vehicle travels as side mirrors, so the height from the dashboard is maintained at a position of 20 cm.

The display control unit 53B is a control unit that controls display on the HUD 1, the instrument panel display 2, the left instrument panel display 9A, and the right instrument panel display 9B.
For example, when it is determined that the driver's effective field of view is “small” (narrower than a predetermined reference range), the information displayed on the instrument panel display 2 is moved to the HUD 1 for display. In this case, the driver can view necessary information from the HUD 1 while looking forward.
On the other hand, the display screens of the left instrument panel display 9A and the right instrument panel display 9B are left as they are, and left and right captured images are displayed as the left and right side mirrors are traveling.

  For example, in FIG. 15A, it is determined that the driver's effective field of view is “large” in the normal driving state, and the display screen of the instrument panel display 2 is the instrument panel installation position ( For example, the height is 20 cm). On this display screen, navigation information 2a for route guidance and a speedometer image 2b are displayed. At this time, on the left instrument panel display 9A and the right instrument panel display 9B, a left rear captured image 9a and a right rear captured image 9b are displayed as the left and right side mirrors are traveling.

  In addition, when the parking control of the vehicle is detected, the display control unit 53B may display the captured images on the left and right rear sides of the vehicle on the display screens of the left instrument panel display 9A and the right instrument panel display 9B. Good. For example, when the driving state determination unit 50 detects the parking release from the vehicle sensor using the vehicle speed, the parking brake release, the GPS, the gyro sensor, or the like, the display control unit via the effective visual field determination unit 51 indicates that the parking release is detected. 53B is notified. Thus, while the vehicle is running, the left instrument panel display 9A and the right instrument panel display 9B can be used as the left and right side mirrors, and safety confirmation can be performed.

  When the driving situation changes and the driver's effective field of view becomes “medium”, as shown in FIG. 15B, the display screen of the instrument panel display 2 has a lower position than the case where the effective field of view is “large” (for example, high Part of the information displayed on the instrument panel display 2 is displayed on the HUD 1. In the case of FIG. 15B, the navigation information 2a is moved from the instrument panel display 2 to the HUD 1, and is displayed as the navigation information 1a on the HUD 1. Since the vehicle is traveling, the left rear panel display 9A and the right instrument panel display 9B continuously display the left rear captured image 9a and the right rear captured image 9b during vehicle traveling.

  If it is determined that the vehicle is parked, the right actuator 10b is moved up to a maximum height of 30 cm, as shown in FIG. 15C, regardless of the driver's effective field of view, and the display controller 53B Information is displayed with the display screen of the display 2 and the left and right display screens of the instrument panel displays 9A and 9B as one screen. For example, in FIG. 15C, navigation map display information 2d is displayed across the display screen of the instrument panel display 2 and the display screen of the left instrument panel display 9A. News information 2e is displayed across the display screen of the instrument panel display 2 and the display screen of the right instrument panel display 9B. In FIG. 15C, there is a frame between the display screen of the instrument panel display 2 and the left and right display screens of the instrument panel displays 9A and 9B. Even if it is frameless, three instrument panel displays can be shown as a single display.

  As described above, according to the third embodiment, the left and right sides of the display screen of the instrument panel display 2 have the display screens that can be moved up and down independently of the display screen, and the left and right display screens A left instrument panel display 9A and a right instrument panel display 9B for displaying a captured image of the side are provided, and the display control unit 53B combines the display screen of the instrument panel display 2 with the left and right display panels of the left instrument panel display 9A and the right instrument panel display 9B. Displays information as one screen. Thus, the convenience of the user can be further improved by integrating the display screens of the instrument panel displays 2, 9 </ b> A, and 9 </ b> B while the vehicle is parked.

  Further, according to the third embodiment, the display control unit 53B lowers the display screens of the instrument panel display 2 and the instrument panel displays 9A and 9B to a position of 20 cm when parking release is detected from the parking state of the vehicle. . Then, the captured images of the left and right rear sides of the vehicle are displayed on the left and right display panels of the left instrument panel display 9A and the right instrument panel display 9B. By doing in this way, the left instrument panel display 9A and the right instrument panel display 9B can be used as the left and right side mirrors while the vehicle is running, and safety can be confirmed.

  In the present invention, within the scope of the invention, any combination of each embodiment, any component of each embodiment can be modified, or any component can be omitted in each embodiment. .

  Since the display control device according to the present invention can reduce oversight of display information due to a change in the driver's effective visual field, it is suitable for a display control device of an in-vehicle display device.

  1 Head-up display (HUD), 1a, 2a, 2d Navigation information, 1b, 2b Speedometer image, 1A, 2A display image, 2 Instrument panel display, 2c Mail information, 3 Actuator, 4-1, 4-2, ... ·, 4-n Vehicle sensor, 5, 5A, 5B Display control device, 6 Windshield, 7 Dashboard, 8 Handle, 9A Left instrument panel display, 9B Right instrument panel display, 9a, 9b Photographed image, 10a Left actuator, 10b Right Actuator, 50 Driving status determination unit, 51 Effective visual field determination unit, 52, 52A Instrument panel drive control unit, 53, 53A, 53B Display control unit, 531 Priority determination unit.

Claims (13)

A display control device mounted on a vehicle and controlling a display of an instrument panel display provided with a display screen for displaying instrument panel information that can be moved up and down, and a head-up display provided on the vehicle front side of the instrument panel display,
A driving situation determination unit that determines a driving situation based on information from the vehicle sensor;
An effective visual field determination unit for determining an effective visual field of the driver based on the determined driving situation;
An instrument panel drive control unit for controlling the raising and lowering of the display screen of the instrument panel display based on a comparison result between the determined effective field of view of the driver and an effective field of view in a predetermined normal driving situation ;
A display control unit that controls display of the head-up display and the instrument panel display based on the determined effective field of view of the driver;
The instrument panel driving control unit, when the effective field of view of said determined the driver is valid field of view in the normal operating conditions, high precepts the height of the instrument panel display in the normal driving conditions, the determined the operating When the driver's effective field of view is larger than the effective field of view in the normal driving situation, the height of the instrument panel display is increased from the height in the normal driving situation, and the determined effective field of view of the driver is effective in the normal driving situation If smaller than the field of view, the height of the instrument panel display is lowered from the height in the normal driving situation,
The display controller, and wherein the normal with the descent of the instrument panel display from the raised position than the height at the operating conditions, to display by moving the information which the instrument panel display is displayed on the head-up display Display control device.   The display control apparatus according to claim 1, wherein the display control unit displays less information on the head-up display than information displayed on the instrument panel display. A priority determination unit for determining a priority given to each information displayed on the instrument panel display;
The display control apparatus according to claim 2, wherein the display control unit determines whether or not to display each piece of information on the head-up display based on the determined priority.   4. The display control apparatus according to claim 3, wherein the display control unit displays at least one of information not displayed on the head-up display on the instrument panel display.   2. The display control unit according to claim 1, wherein when the same information is displayed, the display control unit displays the head-up display and the instrument panel display so as to have the same apparent size from the driver. Display control device. When the vehicle is parked, the instrument panel drive controller moves the display screen of the instrument panel display in the upward direction to the maximum height,
The display control apparatus according to claim 1, wherein the display control unit displays all information to be displayed on the instrument panel display on the instrument panel display regardless of the effective visual field of the driver. The display panel has display screens that can be moved up and down independently of the display screens on both the left and right sides of the display screen, and the left and right display screens display a captured image of the rear left and right sides of the vehicle. ,
2. The display control apparatus according to claim 1, wherein the display control unit displays information by using the display screen of the instrument panel display and the display screens provided on the left and right sides of the display screen as one screen. .   The display control unit displays left and right captured images of the vehicle on the left and right display screens of the side mirror display when the release of parking of the vehicle is detected. The display control apparatus according to claim 7.   The display control apparatus according to claim 1, wherein the effective visual field determination unit determines an effective visual field of the driver according to a traveling speed of the vehicle.   The display control apparatus according to claim 1, wherein the effective visual field determination unit determines an effective visual field of the driver according to a road type of a road on which the vehicle travels.   The display control apparatus according to claim 1, wherein the effective visual field determination unit determines an effective visual field in accordance with a degree of driving concentration of the driver. An information display method for controlling the display of an instrument panel display mounted on a vehicle so that the display screen can be moved up and down and a head-up display provided on the vehicle front side of the instrument panel display,
The driving situation determination unit determines the driving situation based on information from the vehicle sensor,
The effective visual field determination unit determines the driver's effective visual field based on the determined driving situation,
The instrument panel drive control unit controls the raising and lowering of the display screen of the instrument panel display based on the comparison result between the determined effective field of view of the driver and the effective field of view in a predetermined normal driving situation ,
The display control unit controls display of the head-up display and the instrument panel display based on the determined effective field of view of the driver,
The instrument panel driving control unit, when the effective field of view of said determined the driver is valid field of view in the normal operating conditions, high precepts the height of the instrument panel display in the normal driving conditions, the determined the operating When the driver's effective field of view is larger than the effective field of view in the normal driving situation, the height of the instrument panel display is increased from the height in the normal driving situation, and the determined effective field of view of the driver is effective in the normal driving situation If smaller than the field of view, the height of the instrument panel display is lowered from the height in the normal driving situation,
The display controller, said normal with the descent of the instrument panel display from the raised position than the height of the driving situation, the information display method for displaying moving information the instrument panel display is displayed on the head-up display. An instrument panel display mounted on a vehicle and provided with a display screen for displaying instrument panel information that can be moved up and down;
A head-up display provided on the vehicle front side of the instrument panel display;
An information display system including a display control device for controlling display of these displays,
The display control device includes:
A driving situation determination unit that determines a driving situation based on information from the vehicle sensor;
An effective visual field determination unit for determining an effective visual field of the driver based on the determined driving situation;
An instrument panel drive control unit for controlling the raising and lowering of the display screen of the instrument panel display based on a comparison result between the determined effective field of view of the driver and an effective field of view in a predetermined normal driving situation ;
A display control unit that controls display of the head-up display and the instrument panel display based on the determined effective field of view of the driver;
The instrument panel driving control unit, when the effective field of view of said determined the driver is valid field of view in the normal operating conditions, high precepts the height of the instrument panel display in the normal driving conditions, the determined the operating When the driver's effective field of view is larger than the effective field of view in the normal driving situation, the height of the instrument panel display is increased from the height in the normal driving situation, and the determined effective field of view of the driver is effective in the normal driving situation If smaller than the field of view, the height of the instrument panel display is lowered from the height in the normal driving situation,
The display controller, and wherein the normal with the descent of the instrument panel display from the raised position than the height at the operating conditions, to display by moving the information which the instrument panel display is displayed on the head-up display Information display system.

Images